Astrocytes and Tight Junctions Create a Barrier to Viruses and Bacteria

question 109

Multiple Choice

Astrocytes and tight junctions create a barrier to viruses and bacteria known as:

• A) dural sinuses.
• B) the blood ^-brain barrier.
• C) choroid plexues.
• D) meninges.

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Definitions:

Ego

The ego, in psychoanalytic theory, is the part of the personality that mediates between the demands of the id, the superego, and reality, playing a key role in decision making and maintaining one's sense of identity.

Id

In psychoanalytic theory, the part of the mind in which innate instinctive impulses and primary processes are manifest.

Id

In psychoanalytic theory, the part of the personality that contains our primal, instinctual drives and operates on the pleasure principle.

Ego

In psychoanalytic theory, the part of the personality that mediates between the demands of the id, superego, and reality.